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We study the convergence of an axially symmetric hypersurface evolving by volume preserving mean curvature flow. Assuming the surface is not pinching off along the axis at any time during the flow, and without any additional conditions, as…

Differential Geometry · Mathematics 2011-08-31 Maria Athanassenas , Sevvandi Kandanaarachchi

Let f:\Sigma_1 --> \Sigma_2 be an area preserving diffeomorphism between compact Riemann surfaces of constant curvature. The graph of f can be viewed as a Lagrangian submanifold in \Sigma_1\times \Sigma_2. This article discusses a canonical…

Differential Geometry · Mathematics 2007-05-23 Mu-Tao Wang

We prove the mean curvature flow of a spacelike graph in $(\Sigma_1\times \Sigma_2, g_1-g_2)$ of a map $f:\Sigma_1\to \Sigma_2$ from a closed Riemannian manifold $(\Sigma_1,g_1)$ with $Ricci_1> 0$ to a complete Riemannian manifold…

Differential Geometry · Mathematics 2010-08-12 Guanghan Li , Isabel M. C. Salavessa

We study the evolution of the Whitney sphere along the Lagrangian mean curvature flow. We show that equivariant Lagrangian spheres in $\mathbb{C}^n$ satisfying mild geometric assumptions collapse to a point in finite time and the tangent…

Differential Geometry · Mathematics 2018-12-13 Celso Viana

We consider the inverse mean curvature flow in smooth Riemannian manifolds of the form $([R_{0},\infty)\times S^n,\bar{g})$ with metric $\bar{g}=dr^2+{\vartheta}^2(r){\sigma}$ and non-positive radial sectional curvature. We prove, that for…

Differential Geometry · Mathematics 2017-01-18 Julian Scheuer

This paper gives some examples of hypersurfaces $\phi_t(M^n)$ evolving in time with speed determined by functions of the normal curvatures in an $(n+1)$-dimensional hyperbolic manifold; we emphasize the case of flow by harmonic mean…

Differential Geometry · Mathematics 2013-09-25 Robert Gulliver , Guoyi Xu

In this article we give a complete description of the evolution of an area decreasing map $f:M\to N$ induced by its mean curvature in the situation where $M$ and $N$ are complete Riemann surfaces with bounded geometry, $M$ being compact,…

Differential Geometry · Mathematics 2016-02-25 Andreas Savas-Halilaj , Knut Smoczyk

We review some recent results on the mean curvature flows of Lagrangian submanifolds from the perspective of geometric partial differential equations. These include global existence and convergence results, characterizations of first-time…

Differential Geometry · Mathematics 2011-04-19 Mu-Tao Wang

We study mean curvature flows in a warped product manifold defined by a closed Riemannian manifold and $\mathbb{R}$. In such a warped product manifold, we can define the notion of a graph, called a geodesic graph. We prove that the curve…

Differential Geometry · Mathematics 2023-12-21 Naotoshi Fujihara

We give a survey of various existence results for minimal Lagrangian graphs. We also discuss the mean curvature flow for Lagrangian graphs.

Differential Geometry · Mathematics 2013-03-05 S. Brendle

In this paper we mainly study the type II singularities of the mean curvature flow from a symplectic surface or from an almost calibrated Lagrangian surface in a K \"ahler-Einstein surface. We show the relation between the maximum of the…

Differential Geometry · Mathematics 2008-02-05 Xiaoli Han , Jiayu Li

We consider the mean curvature flow of compact convex surfaces in Euclidean $3$-space with free boundary lying on an arbitrary convex barrier surface with bounded geometry. When the initial surface is sufficiently convex, depending only on…

Analysis of PDEs · Mathematics 2020-01-07 Sven Hirsch , Martin Li

In this paper, we give some convergence results of Lagrangian mean curvature flow under some stability conditions in a general K\"ahler-Einstein manifold. In particular, we prove that the flow will converge if the initial data is some small…

Differential Geometry · Mathematics 2011-07-27 Haozhao Li

In this paper, we investigate the mean curvature flow of compact surfaces in $4$-dimensional space forms. We prove the convergence theorems for the mean curvature flow under certain pinching conditions involving the normal curvature, which…

Differential Geometry · Mathematics 2020-04-30 Dong Pu , Jingjing Su , Hongwei Xu

We study the flow $M_t$ of a smooth, strictly convex hypersurface by its mean curvature in $\mathrm{R}^{n+1}$. The surface remains smooth and convex, shrinking monotonically until it disappears at a critical time $T$ and point $x^*$ (which…

Differential Geometry · Mathematics 2007-05-23 Tom Ilmanen , Natasa Sesum

We investigate the integral conditions to extend the mean curvature flow in a Riemannian manifold. We prove that the mean curvature flow solution with finite total mean curvature on a finite time interval $[0,T)$ can be extended over time…

Differential Geometry · Mathematics 2009-10-13 Hong-Wei Xu , Fei Ye , En-Tao Zhao

We prove long-time existence and convergence results for spacelike solutions to mean curvature flow in the pseudo-Euclidean space $\mathbb{R}^{n,m}$, which are entire or defined on bounded domains and satisfying Neumann or Dirichlet…

Differential Geometry · Mathematics 2021-12-16 Ben Lambert , Jason D. Lotay

We consider the evolution by mean curvature flow of Lagrangian submanifolds of the complex projective space CP^n. We prove that, if the initial value satisfies a suitable pinching condition, then the flow exists for all times and the…

Differential Geometry · Mathematics 2013-12-09 Giuseppe Pipoli , Carlo Sinestrari

We investigate the gradient flow of the $L^2$ norm of the Riemannian curvature on surfaces. We show long time existence with arbitrary initial data, and exponential convergence of the volume normalized flow to a constant scalar curvature…

Differential Geometry · Mathematics 2010-08-26 Jeffrey Streets

Under mean radius of curvature flow, a closed convex surface in Euclidean space is known to expand exponentially to infinity. In the 3-dimensional case we prove that the oriented normals to the flowing surface converge to the oriented…

Differential Geometry · Mathematics 2021-01-21 Brendan Guilfoyle , Wilhelm Klingenberg